+1
On Apr 4, 2007, at 11:26 AM, Morgen Sagen wrote:
We need to settle on how we're going to dump and reload data that
lives under //parcels, including preferences information. Let me
explain how I am doing things, and we can see if this works for
everyone else. (This assumes that the dump code is only going to
iterate items outside of //parcels, and the logic for doing so is
moving out of Main.py and into dumpreload.py)
So osaf.sharing has an out-of-the-box (OOTB) Reference item named
"currentSharingAccount" which has a bi-directional-reference to
whatever the "current" sharing account item is. Originally, the
OOTB sharing account item lived under //parcels. I recently
changed sharing/__init__.py to create the OOTB account outside of //
parcels (//userdata now). So now that account will get dumped just
like any other account.
As for sharing preferences, I defined a model.SharePrefsRecord
which contains the UUID of the "current" sharing account:
class SharePrefsRecord(eim.Record):
URI = "http://osafoundation.org/eim/sharing/prefs/0";
currentAccount = eim.field(schema.UUID) # empty string means
no account
...and added the following methods to DumpTranslator:
@model.SharePrefsRecord.importer
def import_share_prefs(self, record):
if record.currentAccount:
@self.withItemForUUID(record.currentAccount,
accounts.SharingAccount)
def set_current(account):
ref = schema.ns("osaf.sharing",
self.rv).currentSharingAccount
ref.item = account
# Called from finishExport()
def export_share_prefs(self):
ref = schema.ns("osaf.sharing", self.rv).currentSharingAccount
if ref.item is None:
currentAccount = ""
else:
currentAccount = ref.item.itsUUID.str16()
cur = ref.item
yield model.SharePrefsRecord(currentAccount)
Note that export_share_prefs is a regular method called directly
from DumpTranslator's finishExport( ) method. The SharePrefsRecord
is imported using the decorated import_share_prefs method. Note
also that since there is ever only one SharePrefsRecord instance,
that record type doesn't need to have any key fields.
In the future we'll improve the Translator code so that parcels can
register themselves and get hooked into what the translator is
doing, but for now just add specific "yield" statements to
DumpTranslator.finishExport( ).
Sound good?
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